Improvement in churns



o; CHASE.

CHURN. n N o 1 8 7 812 PatentedA Feb'. l2 7, 187'7.

.WITNssEsy lNv Ancre v mw l @Qi/fm@ ATTORNEY `N,FEIERS. FHOTO-LITHOGRAPMER, WASHINGTON D C Pnfrnlvfr OSCAR CHASE, OF RUTLAND, OHIO.

IMPROVEMENT IN CHURNS.

Specification forming pal-tof Lettere Patent N o. l 87,81 2, dated February 27, 1877 application iiled July e, 1876. j

p To all whom it may concern the following is a full, clear, and exact de-v scription of the construction and operation of the same, reference being-had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

Figure 1 of the drawings is a representation of a top view of my improved churn. Fig. 2 is a side elevation thereof; and Figs.- 3, 4, 5, 6, 7, 8, 9, l0, 11 are details.

This invention has relation to improvements in churns, wherein a pair of alternately-reciprocating dashers are employed for breaking up the butter-cells; and it consists in the arrangement and novel construction of the operative mechanism employed for imparting a reciprocating movement to the dasher-rods; in the devices for attaching the actuating devices to the churn tub, and the dash-rods to the pitmen, all as hereinafter shown and described.

'In the annexed drawings, the letter A designates the cream-receptacle of my improved churn, having the usual form, and provided with a removable lid, made up of two sections, a, of semicircular shape, either or both of which are readily removable.V

B B represent right-angular lugs, secured in any suitable manner to the sides of tub A, diametrically opposite each other, and a certain distance below its upper edges. One of the arms c of these lugs is horizontal, or nearly so, and is provided with an oblong rectangular slot, d, the object of which will hereinafter appear. v

C represents a strong metallic frame, cornposed of a semi-annular strip of metal, f, conforming to the curvature of the upper part of the tub, and of a second strip, f', secured at each end to the ends of strip f, and bridging the top of the tub above the lid. This-frame is provided at the junctions of its strips f f with a downwardly-curved lockingarm, g, terminating at its lower end in a catch, g', adapted to be passed into slots d in lugs B. The frame being in the position shown in prevent this altogether by means of a metallic stop, D, secured to the side of the tub, against which the strip f bears when in position, thus obviating alll tendency to downward t vibration and I prevent upward vibration by means of a set-screw, h, passing through the said strip f, and abutting forcibly when set up against the stop D.

E E represent two parallel uprights, bolted, or otherwise secured, to strip f of frame C, and affording bearings at or near the middle of their lengths for a horizontal shaft, F, havingv at each end a crank-arm, lo, and between the said uprights with a cone-pulley, G.

The free ends of arms la are provided with a rabbeted slot, i, of oblong form, adapted to receive each acorrespondingly-rabbeted nut, 'i'. Pitmen H are then secured to the said arms by means of a clamp-screw, l, combining the functions of an ordinary screwv and wristpin.

Screws l are provided with a rabbeted screwthreaded end, l1, adapted to enter the threaded aperture in the nut, and a smooth cylindrical part, Z2, next the thumb-piece L3, upon which the pitman has its movement. Slot being of some length, the throw of the crankarms 'may be increased or lessened, thereby increasing or lessening the stroke of the dashrods fi, to which the upper ends of the pitmen are attached, according to the quantity of cream in the tub.

J indicates strong metallic clamps, of the general shape of the letter U, into which the dash-rods are. passed, and then secured by means of a set-screw, j.

These clamps are each provided with a wristpin, j', to which the upper ends of the pitmen are secured, in the usual manner. These clamps being open, the dash-rods I may be easilyvdetached therefrom by unfastening setscrewsj. Dash-rods I will necessarily reciprocate vertically when rotary motion is imparted to the shaft F. Uprights E E are connected at their upper ends by a tubular brace, m, within which is arranged a helical spring or springs, a. This brace is provided at eacliend with a projection, o, forming one of the jaws jaw o.

L, which are of semicircular form and perforated, removed from the cream-tub with ease and dispatch. They may be returned with equal facility to their places.

Motion will be imparted to shaft F through the medium of endless belts M N passing around cone-pulley G, and a second cone-pulley, G', upon a second shaft, O. This shaft has its bearings in two arms, P P, extending out horizontally from uprights E E, and stayed against down ward vibration by means of braces g, connected to strip f of frame G, and bolted or otherwise secured to the said arms P P. Shaft O will be actuated usually by means of a crank-arm, Q, and will be provided 'with a flywheel, B, for the purpose of regulating the reciprocations of the dash-rods and overcoming the dead-centers; and in order to tighten belts M N, should they become unduly lax, I have devised the following: Shaft 0 will be journaled in blocks r, arranged in a rectangular frame, fr', at the ends of arms P P, and will have endwise horizontal play therein after the manner of a sash. The' bearings will be each provided with a tang, s, extending beyond the frame toward shaft F, and the necessary tension of the belts maintained, when obtained, by means of a clamp-screw, t, passing 4through an oblong slot, u', in the arms P P, into a screw threaded perforation ,in the tangs s of the blocks.

What I claim as new, and desire to secure by Letters Patent, is-

1. In ,a churn, the combination of the frame Q, having arms g, catches g', and the set-screw h, and the tub A, having slotted lugs B and stop 1),'substantially as specified.

2. The combination, with a churnpitman and the crank-arm k, having the rabbeted slot i, of the rabbeted nut i', extending into said slot, and the clamp-screw I., substantially as specified.

3. The combination of the shaft F, having pulley G and crank-arms K K, the adjustable shaft O, having pulley G', and the belts M N, with .the dasher-shafts and pitmen, substantially as and for the purpose specified;

4. rEhe clip K, having' a xed jaw, o, and-a horizontally-vibrating leverjaw, o', in combi nation with the dash-rods I and a spring, n, as and for the purpose set forth.

. In testimony that I claim theabove I have hereunto subscribedmy name in the presence of two witnesses.

.OSCAR CHASE.

Witnesses:

JAMES PETTY, EDWARD OAKS. 

